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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood






2. (male) Primary sex organ - produces sperm (male gamete) and male sex hormones - 2 total






3. Why Dairy calves are fed powdered milk.






4. Important 'landmark' during palpation






5. 19-23 (21) days






6. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)






7. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm






8. Failure to have one testis (gonad) to descend






9. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.






10. 19-23 (21) days






11. 30-38 hours after estrus cycle begins






12. 26 hours after estrus begins






13. (switzerland) 2nd in size and milk production - most muscle -






14. Front feet and head first. (except for hogs and dogs)






15. (FSH) causes egg to mature in females






16. FEED






17. 26 hours after estrus begins






18. Prevent the cow from getting an infection from the calve






19. Animals which have only one estrous cycle (ex: dog - fox)






20. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.






21. Microscopic - make sure not sterile - very few bulls are actually tested






22. (male) pushes the testes outward toward the legs for a cool-down off of the body






23. Milk made by mother which includes antibodies for the calf. MUST be given to the calf within the first 24 hrs of life. also provides calf with energy stores. effectiveness lasts from 4-8 months of age.






24. 16-20 hours






25. Male on one pin and female on other side






26. 1. bring in new genes - 2. replace males with leg problems (difficulty breeding) Note: culling has a much greater emphasis in the dairy industry vs the beef industry.






27. Superior genes are _______ to multiply






28. Look for infection - split - and rupture of the penis






29. Cleans and lubricates the urethra ahead of the sperm. (if not - the urine in the urethra has a high salt content and would cause sperm to rupture and die)






30. Contains and regulates the temp of the testes for sperm production






31. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has






32. What helps regulate spermatogenesis?






33. When are steers and heifers weaned from bottle feeding?






34. What makes the milk flow through the mammary glands?






35. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.






36. Milk made by mother which includes antibodies for the calf. MUST be given to the calf within the first 24 hrs of life. also provides calf with energy stores. effectiveness lasts from 4-8 months of age.






37. Start of the reproductive tract for the female. located outside of the body






38. Earlier you castrate a male - the easier it is on the animal. the longer you wait - death rates increase






39. Why does estrus happen before ovulation?






40. 147 days






41. Way to know everything is alright with the breeding male






42. Can survive ~7 days in cow. vast majority <48 hours






43. (from Jersey Islands in Great Britain) Smallest cow - least milk - highest butterfat %






44. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood






45. What helps regulate spermatogenesis?






46. Urinary calculi.






47. Implies the amount of estrogen production






48. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING






49. Larger the cow - more milk is produced; smaller the cow - less milk is produced






50. Supply nutrients for the sperm following ejaculation and deposition into the female reproductive tract